Obama fell in love with Pi's pie while campaigning for the White House.

In Chicago, however, the dough spinners aren't backing down without a fight.

"I like his economic policy—I think he's going to get us out of trouble. I like his foreign policy—he's making friends around the world. His pizza policy is going to have to change," said Marc Malnati, owner of 30 pizzerias throughout Chicago.

According to the Tribune report, Malnati said he's never heard of Pi, and Obama's choice must have been a sign of inexperience.